package com.guhappy.util;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class CookieHelper {
public static String getCookieValue(HttpServletRequest request, String name) {
    Cookie[] cookies = request.getCookies();
    if (cookies != null) {
        for (Cookie cookie : cookies) {
            if (name.equals(cookie.getName())) {
                return cookie.getValue();
            }
        }
    }
    return null;
}

public static void addCookie(HttpServletResponse response, String name, String value, int maxAge) {
    Cookie cookie = new Cookie(name, value);
    cookie.setMaxAge(maxAge);
    response.addCookie(cookie);
    return;
}

public static void removeCookie(HttpServletResponse response, String name) {
    addCookie(response, name, null, 0);
}
}
